by the LBMA. Those listed companies that refuse to participate in regular monitoring are removed from the Good Delivery List and added to the Former List. Good Delivery Referees Five companies are accredited by the LBMA as Good Delivery Referees in order to supervise the Good Delivery System and monitor the companies with Good Delivery certification. The referees' main functions are: Technical assessment of applicants for listing Proactive monitoring of refiners on the Good Delivery List Provision of technical advice on a range of topics The companies accredited as referees are: Argor-Heraeus SA (Switzerland) Metalor Technologies SA (Switzerland) PAMP SA (Switzerland) Rand Refinery (PTY) Ltd (South Africa) Tanaka Kikinzoku Kogyo K.K. (Japan) See also Doré bar Gold as an investment Gold bar Gold reserve Gold standard Inflation hedge London Platinum and Palladium Market Palladium as an investment Platinum as an investment Refining (metallurgy) Silver as an investment Silver standard References External links LBMA - Good Delivery Explained LBMA - Good Delivery Rules Gold Silver Commodity markets